Answer:
276 4/7 ft
Step-by-step explanation:
Let r1 represent the radius of the inner circle. Then its circumference in feet is ...
C = 2πr
66 = 2π(r1)
If the radius of the outer circle is (r1 +44), then its circumference is ...
C = 2π(r1 +44) = 2π(r1) +2π(44)
C = 66 +88π
Then the difference in the circumferences is ...
(66 +88π) - (66) = 88π
Using the given value of π, the difference in circumferences is ...
(88 ft)(22/7) = 1936/7 ft = 276 4/7 ft
Answer:
x = 19
Step-by-step explanation:
To find the value of x, you set the equations as equal to each other:
Then you simplify:
D: (-infinity, 0) U (0, infinity) because you cant have a zero in the bottom of the fraction
Answer:
Step-by-step explanation: